Is there really a destiny or does everyone control their own fate?

Answer 1

There's nothing to prove it. But destiny is just like fate, some people don't believe in fate because they don't like the idea of them not being in control of their own lives. But the elders who have accomplished something in life like to think of their accomplishment as "their destiny."

Answer 2

You do have a destiny. But there are situations in which you have the opportunity to make a decision for the good or the bad. But whatever decision you make will already have been made for you by God. I know this is confusing in the begining, but when you put it into practice it all becomes a little bit clearer.